uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

nixos/modules/services/desktops/dleyna-renderer.nix

@@ -0,0 +1,28 @@
+# dleyna-renderer service.
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+{
+  ###### interface
+  options = {
+    services.dleyna-renderer = {
+      enable = mkOption {
+        type = types.bool;
+        default = false;
+        description = ''
+          Whether to enable dleyna-renderer service, a DBus service
+          for handling DLNA renderers.
+        '';
+      };
+    };
+  };
+
+
+  ###### implementation
+  config = mkIf config.services.dleyna-renderer.enable {
+    environment.systemPackages = [ pkgs.dleyna-renderer ];
+
+    services.dbus.packages = [ pkgs.dleyna-renderer ];
+  };
+}